Rooftop support base



FIG. 1 is a top perspective view of the rooftop support base showing ournew design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a side elevation view thereof, the view being identical atninety degree intervals;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a top plan view thereof.

CLAIM The ornamental design for a rooftop support base, as shown anddescribed.